The three-way is a compact control valve and actuator system, designed to accurately control water, oil, steam and other industrial fluids, especially used for heating & cooling systems. Typical applications are air-handing units, water chillers, boilers and fan coils.
The purpose of a 3-way control valve is to shut off water flow in one pipe while opening fluid flow in another pipe. It could be oil, steam, water or others. To mix liquids from two different pipes into one pipe, or to separate water from one pipe into two different pipes.
